9917446372 has 12 divisors (see below), whose sum is σ = 17356241196. Its totient is φ = 4958520320.

The previous prime is 9917446351. The next prime is 9917446379. The reversal of 9917446372 is 2736447199.

It can be written as a sum of positive squares in 2 ways, for example, as 2041593856 + 7875852516 = 45184^2 + 88746^2 .

It is not an unprimeable number, because it can be changed into a prime (9917446379) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134148 + ... + 194500.

It is an arithmetic number, because the mean of its divisors is an integer number (1446353433).

Almost surely, 2^9917446372 is an apocalyptic number.

It is an amenable number.

9917446372 is a deficient number, since it is larger than the sum of its proper divisors (7438794824).

9917446372 is a wasteful number, since it uses less digits than its factorization.

9917446372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101438 (or 101436 counting only the distinct ones).

The product of its digits is 2286144, while the sum is 52.

The square root of 9917446372 is about 99586.3764377437. The cubic root of 9917446372 is about 2148.4897540298.

The spelling of 9917446372 in words is "nine billion, nine hundred seventeen million, four hundred forty-six thousand, three hundred seventy-two".